Step-ladder



(No Model.) 7

S. WRIGHT. STEP LADDER.

No. 589,916. Petented se 14,1897.

W/TNESSES. /NVENTO/? W SVW %7ZC ATTORNEY.

UNITED STATES T ATENTA' FFICE.

SAMUEL VRIGIIT, OF BEATRICE, NEBRASKA.

STEP-LADDER.

SPECIFICATION forming part of Letters Patent No. 589,916, dated September 14, 1897.

Application filed February 25, 1396. Serial No. 580,763. (No model) To all whom it may concern.-

Be it known that I, SAMUEL WRIGHT, a citizen of the United States, residing atBeatrice, in the county of Gage and Stateof Nebraska, have devised new and specific Improvements in a Self-Adjusting Step-Ladder invented by me and on which Letters Patent were granted in the United States May 11,1886,No. 341,535; and I declare that the following is a full and exact description of the same, reference being made to the annexed drawings, which form a part of this specification.

Figure 1 of the drawings is a perspective View; Figs. 2 and 3, detail views of the ball and socket by which the triangular brace is jointed to platform. Figs. 4 and 5 are detail views of the metal strap by which the brace is jointed to the prop-sticks.

In the drawings, A represents the platform, B B the prop-sticks, O the triangular brace, and F the ladder, all as shown in my afore-- said patent.

L represents a metallic socket with the straps Z Z, by which it is secured to the bottom of platform A, while E is a pin fastened in the top of the brace O and provided with the terminal ball a, which fits in the socket L.

G represents a metallic angle-strap which is nailed or bolted to the arms of the brace C and pivoted on the screw-bolt K, so as to connect the side strips 0 to the horizontal crosspiece 0. On the inside of the angle-piece G are formed the guides g g, under which slides a nut 11, that receives the screw K, the latter vpassing through the angle-strap G and prop- Ghaving guides g g, the nut H and the screw Kin combination with the brace and propsticks as and for the purpose described.

SAMUEL WRIGHT. [1 s] Witnesses:

W. G. MOORE, PHIL. GERHART, J. H. FROHEK. 

